From: Wang Sheng-Hui <shhuiw@gmail.com>
Date: Thu, 27 Sep 2012 12:00:01 +0000 (-0400)
Subject: ext4: remove redundant offset check in mext_check_arguments()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cbb4ee830e0057f8d60b4e0a8c4b6daa6cdd28d7;p=linux-beck.git

ext4: remove redundant offset check in mext_check_arguments()

In the check code above, if orig_start != donor_start, we would
return -EINVAL. So here, orig_start should be equal with donor_start.
Remove the redundant check here.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index c2e47da7c2ba..cee4bd066b7a 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -1134,7 +1134,6 @@ mext_check_arguments(struct inode *orig_inode,
 	}
 
 	if ((orig_start >= EXT_MAX_BLOCKS) ||
-	    (donor_start >= EXT_MAX_BLOCKS) ||
 	    (*len > EXT_MAX_BLOCKS) ||
 	    (orig_start + *len >= EXT_MAX_BLOCKS))  {
 		ext4_debug("ext4 move extent: Can't handle over [%u] blocks "